Black Box MD885A-R3, MD885AE-R2, MD885C-R2, 34336 user manual General Operation and Special Features

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4.0 General Operation and Special Features

2.Enter the address or slot number—To enter the address or slot number of the modem to be controlled, press pushbutton 3. If ADDR/C is displayed on REMOTE screen 2, a screen showing ADDRESS: 000,000 on the top line will be displayed. If SLOT/C is displayed on REMOTE screen 2, a screen showing SLOT NUMBER: 01 on the top line will be displayed.

Enter the address or slot number as follows: Use the right and left arrow pushbuttons to go to the digit you want to change. Then use pushbutton 1 to decrease (DEC) a number or pushbutton 3 to increase (INC) it.

If SLOT/C is selected, only modems in the same rack as the controlling modem may be specified (slots 1–16). However, if ADDR/C is selected, you can specify any modem in the same rack with the controlling modem or a remote modem connected to any modem in that rack (Figure 4-1). The remote modem may be in a rack without a rack controller, or it may be a standalone modem.

When the address or slot number you want is shown, press ENT. The LCD will return to REMOTE screen 2.

3.Initiate control—After entering the address or slot number of the modem to be controlled, select CTRL from REMOTE screen 2. “CTRL” will flash on and off for about seven seconds until the connection to the specified modem is made. When the connection is made, all characters on the LCD of the controlling modem will be in lower case instead of capitals—this indicates that the screens displayed are for the controlled modem. Buttons pressed on the front panel of the controlling modem will affect the controlled modem (and not the controlling modem).

If the specified modem is not present or is not working, the LCD will display a “NO RESPONSE” message. If a rack controller is not installed on the rack enclosure or is not working, “CTRL” will continue to flash on and off indefinitely (until you exit from the address or slot control mode).

Exiting from Remote Control Mode

To exit from the address or slot control mode, press the ENT button five times in succession. (If the remote modem resets as a result of a configuration change, the local modem will appear to have no control. To remedy this situation, press the ENT button five times.)

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Contents Modem FCC Information Table of Contents Table of Contents Diagnostics Table of Conents Specifications Specifications Installation Quick StartQuick Start For all applicationsFor dialup applications For leased-line applicationsFront-Panel LCD and Controls Front-Panel LCD and ControlsRS = TR =MR = CS =Quick Setup V25 Dial Async Available Quick Setup ConfigurationsDial Hayes V25 Dial SyncQuick Setup 07 2-W Leased ANS Quick Setup 11 2-W Dial Quick Setup 12 2-W Dial V32/208AT D 5551212 cr Basic OperationAT D 9,5551212 cr AT DP CRN Asynchronous V.25 bis OperationSynchronous V.25 bis Operation Pushbutton 1 Phone Pushbutton 2 Prog Auto-Dial Failure Messages ENT9600 6 2-WIREDIAL Bell 208 Operation Quick Setups 11 34/V.32 Dial Backup Slave-to-Master Inbound Transmission Problem Solving This page is intentionally left blank Modem Setup Options Methods For Selecting OptionsSelecting Options from the Front-Panel Setup Type Line Speed For Modem SETUPS. The first Options Modem SETTING, bps Resultant Data RATE, bpsModem 1 V.42 Error Correction Options Modem Modem Setup Options Modem Modem Setup Options Dialer Mode Data Format Options Modem See Section Remote Test Enable Disable Modem Setup Options Modem Setups Compromise Equalizers option is available for all modes Modem 8 V.33 and Bell 208A/B Options Options Accessible with Summary Setup only Modem Setup Options Modem Modem Setup Options Quick Reset Phone Number StorageLeased Line Auto-Recovery General Operation and Special FeaturesDialing Control Characters Character FunctionDial Backup Dial Line Auto-Recovery DTR Dialing AT &Z0=T555-4545/RDumb Mode And Bell 208 Operation TR MR RS CS Modem Security Operation Password Commands Command Function EXAMPLE1 MEM.LOC.2AT &Z1=/ASECURITY AT &Z5=/PYELLOW Modem-Controlled Remote Control AT &Z0=/UCONNECTEDControl Procedure Modem-to-Modem Control Procedure Using a Rack Controller General Operation and Special Features Remote control-address control mode Diagnostic Interface Control Pin FunctionDiagnostic Port Commands Command FunctionConnect 3,22 Connect 003,022 CON 000003,22Response Meaning Error Address g,uDTE display Automatic Fallback V.22 bis/BELL 212A/BELL 103 Fallback Default Mode DescriptionRate Renegotiation Procedure RRP V.22 bis/V.22/V.21/V.23 FallbackHow to Enable or Disable RRP Rate Change Screen11 V.13 Operation Hayes Emulation Mode Hayes Mode AutodialerAT M2 V1 D 555-1212 S2=1O AT DT 9,212555-1234 or AT DT 9, 212 555Exclamation Flash AT DT 9,555-1212Hayes Compatible Commands AT D3331234 AT D 555-1212 L5 AT S7=30 AT D9,3331234 Hayes Emulation Mode Registers AT S0? S7? AT S0=5Modem Hayes Emulation Mode Selecting Options In Hayes Mode Hayes Mode Reference Tables Hayes Compatible Commands Speaker Control Speaker VolumeProduct Code Or Checksum Forced On-LineTone Dialing Modify S RegisterRead S Register Word/Digit Result CodeLong-Space Disconnect Forced Command StateRecall Factory Configuration Recall Stored User ProfileRTS And CTS Options Asynchronous/Synchronous ModeData Set Ready Control Default User Profile Test CommandsView Active Configuration, etc Write Profile To Memory\B1 Store Telephone NumberBuffer Mode/Speed Conversion MNP Class LimitHayes Compatible Commands Hayes Mode Result Codes Digit Code Word Code Meaning105 Register Range Units Default Description S Register FunctionsV.25 bis Autodialer Enabling The V.25 bis AutodialerV.25 bis Autodialer Commands 109 V.25 bis Autodialer Commands CICC, D, #, V.25 bis Dialing ParametersSection V.25 bis Result Codes DTR Dialing In V.25 bis ModeDialing Parameters V.25 bis Result CodesWhen And Why To Test Symptoms and Scope of The ProblemOverview Of Modem Diagnostics Physical InspectionHow to Select and Activate Tests Diagnostic Monitoring Status Screens116 117 Local Modem Diagnostics Analog Loopback Test119 Analog Loopback Self-Test Albst External Analog Loopback Test Albx 122 External Analog Loopback Self Test Albst 124 Digital Loopback Test DLB Remote Modem Diagnostics Remote Digital Loopback Test RDL127 Remote Digital Loopback Self Test Source Nation Indicator Pin Desig FunctionAppendix B Quick Setup Configurations Table B-1. Quick Setup ConfigurationsTable B-1 . Quick Setup Configurations Dumb LEASED2132 133 134 Appendix C Summary Setup Introduction to Summary SetupFigure C-1. How to access the Summary-Setup Screens Setups Screen Primary OptionsDial Line Options Primary Options0 2 1 1 0 0 V42 1 V42 0 0 0 1 0 2Data Pump Options Pump1 Pump2Miscellaneous Options Misc1 Misc2AT Profiles Screen AT ProfilesREG Screen Figure C-3. Changing the S Register ValueAppendix D Jumpers Appendix D Jumpers Table D-1. Jumper Switch Functions NOM Statement 148 Copyright 1999. Black Box Corporation. All rights reserved
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MD885C-R2, MD885A-R3, MD885AE-R2, 34336 specifications

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